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本文合成了含有 1～ 3个萘基取代的脲类柔性开链化合物 .通过对该类化合物在溶液中的光物理行为以及受溶液酸度影响的比较研究 ,发现多足化合物的发光性质强烈地依赖于化合物本身存在的构象形式 ;同时观察到以叔胺为骨架的三足化合物存在分子内光诱导电子转移反应 (PET) ,且这一过程强烈地依赖于介质的pH值 ;而叔胺基的氮原子质子化将会减弱这一PET过程 .
In this paper, 1 ~ 3 naphthyl substituted urea flexible open-chain compounds were synthesized by comparing the photophysical behavior of these compounds in solution and the acidity of the solution, and found that the luminescent properties of the plentiful compounds are strongly dependent on In the conformational form of the compound itself. At the same time, it is observed that intramolecular light-induced electron transfer reaction (PET) of the tri-stranded compound with tertiary amine as a skeleton exists, and this process strongly depends on the pH of the medium; Protonation of nitrogen atoms will weaken this PET process.